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test_string_replace: Make the test table-driven

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This makes it straightforward to add more test-cases.

Signed-off-by: Simon McVittie <smcv@collabora.com>
This commit is contained in:
Simon McVittie 2021-08-02 11:25:56 +01:00
parent 24b652d3ca
commit c64e6cfc79
1 changed files with 40 additions and 22 deletions
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62
glib/tests/string.c
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@ -498,30 +498,48 @@ test_string_to_bytes (void)
static void
test_string_replace (void)
{
GString *s;
guint n;
static const struct
{
const char *string;
const char *original;
const char *replacement;
guint limit;
const char *expected;
guint expected_n;
}
tests[] =
{
{ "foo bar foo baz foo bar foobarbaz", "bar", "baz", 0,
"foo baz foo baz foo baz foobazbaz", 3 },
{ "foo baz foo baz foo baz foobazbaz", "baz", "bar", 3,
"foo bar foo bar foo bar foobazbaz", 3 },
{ "foo bar foo bar foo bar foobazbaz", "foobar", "bar", 1,
"foo bar foo bar foo bar foobazbaz", 0 },
{ "aaaaaaaa", "a", "abcdefghijkl", 0,
"abcdefghijklabcdefghijklabcdefghijklabcdefghijklabcdefghijklabcdefghijklabcdefghijklabcdefghijkl",
8 },
};
gsize i;
s = g_string_new ("foo bar foo baz foo bar foobarbaz");
for (i = 0; i < G_N_ELEMENTS (tests); i++)
{
GString *s;
guint n;
n = g_string_replace (s, "bar", "baz", 0);
g_assert_cmpstr ("foo baz foo baz foo baz foobazbaz", ==, s->str);
g_assert_cmpuint (n, ==, 3);
n = g_string_replace (s, "baz", "bar", 3);
g_assert_cmpstr ("foo bar foo bar foo bar foobazbaz", ==, s->str);
g_assert_cmpuint (n, ==, 3);
n = g_string_replace (s, "foobar", "bar", 1);
g_assert_cmpstr ("foo bar foo bar foo bar foobazbaz", ==, s->str);
g_assert_cmpuint (n, ==, 0);
s = g_string_assign (s, "aaaaaaaa");
n = g_string_replace (s, "a", "abcdefghijkl", 0);
g_assert_cmpstr ("abcdefghijklabcdefghijklabcdefghijklabcdefghijklabcdefghijklabcdefghijklabcdefghijklabcdefghijkl",
==, s->str);
g_assert_cmpuint (n, ==, 8);
g_string_free (s, TRUE);
s = g_string_new (tests[i].string);
g_test_message ("%" G_GSIZE_FORMAT ": Replacing \"%s\" with \"%s\" (limit %u) in \"%s\"",
i, tests[i].original, tests[i].replacement,
tests[i].limit, tests[i].string);
n = g_string_replace (s, tests[i].original, tests[i].replacement,
tests[i].limit);
g_test_message ("-> %u replacements, \"%s\"",
n, s->str);
g_assert_cmpstr (tests[i].expected, ==, s->str);
g_assert_cmpuint (strlen (tests[i].expected), ==, s->len);
g_assert_cmpuint (strlen (tests[i].expected) + 1, <=, s->allocated_len);
g_assert_cmpuint (tests[i].expected_n, ==, n);
g_string_free (s, TRUE);
}
}
int